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  1.    19 Jan 2016 #250
    Join Date : Apr 2015
    Posts : 12,588
    W10Prox64

    Quote Originally Posted by Kari View Post
    That's the most common mistake made when users post about lost connection on vm, the reason I put this in a Note box in the tutorial (end of Part Three):

    Note   Note
    When Hyper-V is enabled and one or more external virtual switches created, your host system uses these switches instead of host physical network adapters to connect to the network. This is as it should be, do not remove or disable the virtual switches!


    One more question or rather a request before going to possible solutions: We need to check if a virtual switch is still in the system although not mentioned in your Virttual Switch Manager. Please run the cmdlet Get-VMSwitch in PowerShell and either post the screenshot of the results or tell exactly what virtual switches it found, switch types and adapters they are connected to. Example from my machine in screenshot.
    Nothing, zilch, zip, nada, zed, big fat ZERO

    You have to make that much bigger, in RED and all kinds of stars around it for people like me who don't read......
      My ComputerSystem Spec
  2.    19 Jan 2016 #251
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,653
    Windows 10 Pro
    Thread Starter

    OK. I think you'd be better off with a clean install but if you have patience you could try this:


    1. In Hyper-V Virtual Switch Manager, remove all switches. I mean all of them!
    2. In Network Connections, remove all adapters labeled as vEthernet (any name). Right click all remaining (physical) adapters, if they are bridged remove from the bridge
    3. Reboot, connect with Ethernet
    4. In Hyper-V Virtual Switch Manager, create a new external switch connecting it to the Ethernet adapter
    5. Open your Windows 7 vm settings (you still have it?), change the Network Adapter to the external switch you just created
    6. Start your Windows 7 vm, It should now have network connection

    If this works, we can try re-create your wireless external switch.

    This is how the adapter properties on your host should look when the virtual switches have been created correctly. First, the host physical NIC properties, everything else is unselected, only the Hyper-V Extensible Switch being selected:
    Name:  2016_01_19_23_36_311.png
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    Then the vEthernet adapter, the virtual switch connected to the above NIC. Everything else selected except the Hyper-V Extensible Switch and MS Network Adapter Multiplexor Protocol :
    Name:  2016_01_19_23_38_531.png
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    Seen in Device Manager, each virtual switch should be mentioned in Network adapters:
    Click image for larger version. 

Name:	2016_01_19_23_41_502.png 
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ID:	59688

    In my case the three switches seen in Device Manager are the same three shown in PowerShell with Get-VMSwitch:
    Click image for larger version. 

Name:	2016_01_19_23_43_573.png 
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ID:	59689


    We continue when you have either decided to reinstall or gone through the steps I listed above

    Kari
      My ComputerSystem Spec
  3.    19 Jan 2016 #252
    Join Date : Apr 2015
    Posts : 12,588
    W10Prox64

    step #1 gives me an error:

    Name:  del-switches-error.PNG
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Size:  38.4 KB


    Edit:
    Step #2 also gives no option to delete


    Click image for larger version. 

Name:	del-netwrk-conns.PNG 
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ID:	59698

    I'm pretty sure I'll be able to accomplish step #3....


    Edit#2 - I deleted them in Device Manager...still will not delete from Hyper-V. Going for a reboot now.
      My ComputerSystem Spec
  4.    19 Jan 2016 #253
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,653
    Windows 10 Pro
    Thread Starter

    OK. You might want to disable / remove the Hyper-V feature in Programs and Features > Turn Windows features on or off, reboot and enable / add it again, then try again.

    If that does not work my recommendation is to reinstall, this time not removing essential virtual devices in Device Manager
      My ComputerSystem Spec
  5.    19 Jan 2016 #254
    Join Date : Apr 2015
    Posts : 12,588
    W10Prox64

    Quote Originally Posted by Kari View Post
    OK. You might want to disable / remove the Hyper-V feature in Programs and Features > Turn Windows features on or off, reboot and enable / add it again, then try again.

    If that does not work my recommendation is to reinstall, this time not removing essential virtual devices in Device Manager
    Reinstall? Reinstall what? My entire computer?
      My ComputerSystem Spec
  6.    19 Jan 2016 #255
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,653
    Windows 10 Pro
    Thread Starter

    Quote Originally Posted by simrick View Post
    Reinstall? Reinstall what? My entire computer?
    The fact that Virtual Switch Manager lists some switches which cannot be removed but PowerShell does not see them tells that your Hyper-V might be screwed enough for reinstall being the best if not only way to fix it.

    Restoring to a point before you manually removed the switch from Device manager is an option, too.

    Try first the disable / reboot / enable Hyper-V trick.
      My ComputerSystem Spec
  7.    19 Jan 2016 #256
    Join Date : Apr 2015
    Posts : 12,588
    W10Prox64

    Quote Originally Posted by Kari View Post
    The fact that Virtual Switch Manager lists some switches but PowerShell does not see them tells that your Hyper-V might be screwed enough for reinstall being the best if not only way to fix it.

    Restoring to a point before you manually removed the switch from Device manager is an option, too.

    Try first the disable / reboot / enable Hyper-V trick.
    I got rid of them. They are gone....on to next steps (scrolling up...)
      My ComputerSystem Spec
  8.    19 Jan 2016 #257
    Join Date : Apr 2015
    Posts : 12,588
    W10Prox64

    >>Reboot, connect with Ethernet<<

    I am connecting with wifi, okay?

    Edit: I guess not...

    Name:  create-switch-error.PNG
Views: 135
Size:  35.9 KB
      My ComputerSystem Spec
  9.    19 Jan 2016 #258
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,653
    Windows 10 Pro
    Thread Starter

    OK, I thought that you still had a possibility to use Ethernet. Try with WiFi, then, create a virtual switch. If it gives the error message again do the disable feature / reboot / enable feature cycle and try again.
      My ComputerSystem Spec
  10.    19 Jan 2016 #259
    Join Date : Apr 2015
    Posts : 12,588
    W10Prox64

    Quote Originally Posted by Kari View Post
    OK, I thought that you still had a possibility to use Ethernet. Try with WiFi, then, create a virtual switch. If it gives the error message again do the disable feature / reboot / enable feature cycle and try again.
    One question: Will I be able to just import my W7 VM after that?
      My ComputerSystem Spec

 
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